Hawaii Plumbing Legislation, Codes, and Guidelines

State-Level Plumbing Codes and Legislation in Hawaii

The State of Hawaii has adopted the Uniform Plumbing Code (UPC) as its statewide plumbing code. Specifically, the state has incorporated the 2018 edition of the Uniform Plumbing Code, published by the International Association of Plumbing and Mechanical Officials (IAPMO), into the Hawaii Administrative Rules (HAR) under Title 3, Chapter 183. This adoption includes specific state-level amendments to address local requirements, such as seismic support standards and definitions tailored to Hawaii's regulatory environment.

While the state establishes these minimum standards, the enforcement of plumbing codes is primarily handled at the county level. Each county in Hawaii may adopt the state code by ordinance and is responsible for issuing permits and conducting inspections for plumbing installations within its jurisdiction.

Primary State Boards and Agencies

• State Building Code Council (SBCC): Administratively attached to the Department of Accounting and General Services (DAGS), the SBCC is responsible for the adoption and amendment of the state building codes, including the State Plumbing Code, as mandated by Hawaii Revised Statutes (HRS) Section 107-25.
• Department of Commerce and Consumer Affairs (DCCA): The DCCA’s Professional and Vocational Licensing Division (PVL) oversees the licensing of plumbing professionals. Specifically, the Board of Electricians and Plumbers is responsible for the licensing of Journey Worker Plumbers, Master Plumbers, and plumbing contractors.
• County Building Departments: These local agencies are the authorities having jurisdiction (AHJ) responsible for the actual enforcement, permitting, and inspection of plumbing work to ensure compliance with the adopted state codes and local ordinances.

Resources to Learn More

• Hawaii State Building Code Council
• Hawaii Board of Electricians and Plumbers
• International Association of Plumbing and Mechanical Officials (IAPMO)
• Hawaii Administrative Rules (HAR)
• Calculate a Water Heater Replacement Project in Hawaii
• Hawaii Plumber Contractor Licensing Requirements
• Find Plumber Contractors in Hawaii